2 * Copyright (c) 2014 Martin Decky
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 static irq_cmd_t default_cmds
[] = {
47 static const irq_code_t default_ucode
= {
50 ARRAY_SIZE(default_cmds
),
54 /** Subscribe to IRQ notification.
56 * @param inr IRQ number.
57 * @param method Use this method for notifying me.
58 * @param ucode Top-half pseudocode handler.
60 * @param[out] out_handle IRQ capability handle returned by the kernel.
62 * @return Error code returned by the kernel.
65 int ipc_irq_subscribe(int inr
, sysarg_t method
, const irq_code_t
*ucode
,
66 cap_handle_t
*out_handle
)
69 ucode
= &default_ucode
;
71 return __SYSCALL4(SYS_IPC_IRQ_SUBSCRIBE
, inr
, method
, (sysarg_t
) ucode
,
72 (sysarg_t
) out_handle
);
75 /** Unsubscribe from IRQ notification.
77 * @param cap IRQ capability handle.
79 * @return Value returned by the kernel.
82 int ipc_irq_unsubscribe(cap_handle_t cap
)
84 return __SYSCALL1(SYS_IPC_IRQ_UNSUBSCRIBE
, cap
);